Sparking plug.



ii'iiiii'niiin Harina, or Non ifoii'k SPARKING PLUG..

lSpecification of Letters Patent.

Application tiled February 6, 1907. Serial Ne. 356,027.

T ril/ZZ lc/mn it 7114/1/ colture/fn:

Be it known that I, WILLIAM B. IIAYDEN,

a citizen ofthe United States, residinffat f T New York inthe eountv of New York and i State of `New York, have Ainvented new and useful Vlinprovenients in Sparking lugs, of which thc following is a specilicat-ion.

This invention relates to sparking plugs for 'explosive engines and the object thereof is to provide theplug with Vmeans arranged cxteriorly of the cylinder ofthe engine and independent of the water acket ofthe lcylinder .or cooling the working parts and insulations of the plug thereby preventing the heating of certain of the working parts of the plug to such an extent as to injure them which would interferewith"the operation of the plug. In view of such arrangement the operation of the. plug is notv retarded and furtlufrniore the life of the plug is prolonged.

A further object of the invention is to prow vide what way be ,termed a water jacketed sparking plug independentot' the cylinder of the engine and which shall be simple in 'itsf construction, strong, durable, ellicient in its use, readily cylinder of the'engine, and con'iparatively inexpensive to manufacture.

With the foregoing and other objects in view, the invention consists in the novel construction, combination, and arrangement ol" parts hereinafter more specilically described and illustrated in the accompanying drawings, herein is shown the preferred embodinient of the invention, but it is to be .understood that changes, variations, and Inodilications can be resorted to which come wltlun y'the scope ol the claims hereunto appended.

ln describing the invention in detail reference is had to the accompanying wherein like reference characters denote corresponding parts throughout the 4several views and in which Figure l is a longitudinal sectional view of a sparking plug in accordance with this invention attached to the cylinder of an engine, the latter being broken away and shown in section, and Fig. 2 is a section on the line 2h2 Fig. 1,.v

Referring -to the drawings by reference characters 3 denotes the outer section of the plug and 4 the inner section, the latter being hollow and provided with peripheral threads 5 adapted tov engage in a screw-threaded opening 6 formed in the cylinder wall 7 so that the plug will be secured in position.

positioned with respect to the,

drawings,

The cylinder has a water-space 7a. The inner end of 'the section tis provided `with `a protulmrance 8 carrying a contact point 9, the protubera'nce S andcontact point 9 constituting a 'liXed electrode. At the outer end Patented June 25, 1907.,

of the inner section 4 a laterally-extending y annular oil'set 1.0 is. provided, the latter hav! ing an annular flange 10a. u Said oilset 1() is recessed on that face which opposes the cylinder 7 ol' the engine and secured to the section 4 and positioned against' the recessed face of the ollsert 10-as well as overlapping said offset is a disk12 which inconnection with the recess 11 of the ollset forms a-watelr chamber.` The disk 12 has lformed integral therewith an inlet and an outlet nipple. 13, 1.4, respectively, said nipples communicating with the water chamber. .si water supply pipe 15 communicates with the nipple `13 and a discharge pipe 1 (i is connected to the nipple 14. lock-nut 17 is mounted upon the section 4 'for securing it in position whenthc plug is in engagement with the cylinder 7.

'The section .':l of the plug is hollow and at its inner end is formed with an annular flange iS'which is secured by the holdfas't devices 19 to one face of the ollset- .10. Journaled in the section 3 as well as projecting from one side thereof is a rock-shaft 19a carrying an arm 2li which is connected to an armature 2l of an electro-nui-gnet.22. The arm 2() carries a sot-screi'v 223 having one ond thereof hearing against a spring 2 4, the function of the latter being toshift the arm20 so as to retain the armature 21 away from the magnet 22.

The reference character25 denotes a vibra-` tory arm which at one end is connected to the shaft '10 within the section 3 and the said vibrator-y arm 25 extends through the section 4 aswell as projecting from the inner end thereof, and said arm 25 carries a contact 26 which opposes the contact 9. The arm 25 and contact 26 forni a vibratory electrode. The section 3 lis insulated from the sect-ion 4, as at 27. Protuberances 2S, 29 are provided for the binding nected'the leacing-in Wires. Branch wires 32, 331ead from the bindingposts to the magnet. A cover for inclosing the working parts cat-ed' by lhe reference character 34 and which is detachably connected to the Harige 10L ot the oilset 10.

From the foregoing arrangement of parts it will be evident that what may be termed a water jacket is provided for the nlug` osts 30,31 to which are con-..

l of the plug carried by the section 3 is indi- IIO whereby the insulation between the tWo sections of the plug and the Working parts carried by one of the sections is cooled'and that the Water jacket is entirely independent oi the Water jacket of the cylinder ofthe engine; under such conditions the Working parts of the plug are prevented from being overheated and the life of the plug is increased.

What I claim is:

1. An electrical sparking plug for explosive engines coinprising en inner and an outer section, said inner sectlon having-.a fixed electrede, a vibratory electrode cooperating with the xed electrode, means -carried by the outer section of the plug for actuating the l vibratory electrode, and means carried by the inner section of the plug and independent of the engine cylinder for cooling the actuating means for the vibratory electrode.

2. An 'electrical sparking plug comprising both terminals an inner section having a recessed offset, a plate secured to the offset and forming in connection with the recessed portion ofthe oiset a Water chamber, means for establishing communication between Mie water chamber and a source oi' su pply, means i'or conducting the Water iroin sind clunuber,

an outer section carrying un electrically-op' erated device,and means for securing the outer section to the ollset.

` 3. A sparking plug for explosive engines adapted to extend through the wall ol" the cylinder of the engine and provided with an electricztlly-operated device for actuating an electrode, said plug further comprising a fixedl electrode, a lock nut for the plug, and u, Water acket surrounding a portion of the, plug and independent of the water jacket of the eylinderof the engine for cooling seid de vice.

In testimony whereof I have hereunto set my hand inpresenee of two subscribing witnesses.

"VILLIAM B. IIAYDEN Vitnesses 1 C. ALLEN HAYDEv, l CALVIN BURR. 

